Convergence optimization of parametric MLEM reconstruction for estimation of Patlak plot parameters.
Georgios I. AngelisKris ThielemansAndri C. TziortziFederico E. TurkheimerCharalampos TsoumpasPublished in: Comput. Medical Imaging Graph. (2011)
Keyphrases
- parametric models
- initial guess
- parameter estimation
- fine tuning
- maximum likelihood estimation
- faster convergence
- parameter optimization
- maximum a posteriori probability
- maximum likelihood
- closed form solutions
- evolutionary multiobjective
- log likelihood function
- global convergence
- rule induction
- global optimization
- sensitivity analysis
- high resolution
- shape estimation
- parameters estimation
- optimization problems
- genetic algorithm
- initial conditions
- optimization method
- number of iterations required
- highly non linear
- semi parametric
- optimization algorithm
- myocardial motion
- parameter values
- optimization methods
- estimation algorithm
- optimization process
- three dimensional
- markov random field
- maximum likelihood estimator
- nonlinear optimization
- parameter estimates
- image correspondences
- estimation process
- sparse representation
- iterative algorithms
- error analysis
- constrained optimization